From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 22 Apr 2024 10:55:43 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rypSf-00BJy7-07 for lore@lore.pengutronix.de; Mon, 22 Apr 2024 10:55:43 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rypSc-0001I7-6w for lore@pengutronix.de; Mon, 22 Apr 2024 10:55:40 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Date:To:From: Subject:Message-ID:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=iTI0uA7k8EQSYaYg4Ps8MDYpHbQ8jBA0sEjedbfvxm0=; b=guAx4dEMH2j3tkp6tG+g3nH3mo w3quGnAVRrtFgdGxvaPBDuQPOJldrlrVqL9xyfYNFRkzpp1hpEAUsm/IvP/PdzXwJXd9GQFIvtd0d uyM2XyuUJ+fYMXEi9ktnixCvsJsFv5qw0IO1tS7CB6qIMBbztxcJmZEKjgj5LWt+SEmzZWEcUCkfZ g+sWVngnB9dRcksw86VILOzCLATkTku3Lw7pfH8jXiWD9q6c83ggIlRvWTZDTHbkSQwLn2SlRh/74 qmUfto+qqP8zIelYkS/OtSimRBey0UedYWx5QId26nx/HE2pNUrokxeZUWq/0ZvIW7QBMdmtEgpn9 yM+MuMWQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rypRr-0000000CnR0-0OoM; Mon, 22 Apr 2024 08:54:51 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rypRp-0000000CnPU-0LGV for barebox@bombadil.infradead.org; Mon, 22 Apr 2024 08:54:49 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=MIME-Version:Content-Transfer-Encoding :Content-Type:References:In-Reply-To:Date:To:From:Subject:Message-ID:Sender: Reply-To:Cc:Content-ID:Content-Description; bh=iTI0uA7k8EQSYaYg4Ps8MDYpHbQ8jBA0sEjedbfvxm0=; b=ZoMMGovxQzc32fA5+avHJNoOZg 80nNnj7aldfRnZI/jWW3c42BOozwJpH8FzEqctO28XIVRAKjYyvDJs/15I7jUl8nHA487EwXIR0YQ 23otpVUgo17gfPROa6XBQp0vfTbEG6oqVkoSPdtBINh8BCWeuoDCeLgACt0n67OHd8c3Fp7D3sRv/ eR6W1JzeREgrCenhyEPtavn5KG+Ts0dhrko8qf7hlOYqLIkUyk/SaSMFzyRvWx7KZahMaRpXK499L 0K/TD/TnJAjpNnb0w0DQLTHk0qh500zHaO/lKZRzwi9lkZ4tay0DLvUhGn2Ea/9kOu6gqnLynbmhp 2Sd72fZQ==; Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by desiato.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rypRl-0000000Db9c-3O2l for barebox@lists.infradead.org; Mon, 22 Apr 2024 08:54:47 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=[IPv6:::1]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rypRl-0000NI-9r; Mon, 22 Apr 2024 10:54:45 +0200 Message-ID: <15119e931e142564427d88a2504d894996166e92.camel@pengutronix.de> From: Lucas Stach To: Ahmad Fatoum , barebox@lists.infradead.org Date: Mon, 22 Apr 2024 10:54:44 +0200 In-Reply-To: <20240419061331.2592739-6-a.fatoum@pengutronix.de> References: <20240419061331.2592739-1-a.fatoum@pengutronix.de> <20240419061331.2592739-6-a.fatoum@pengutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.48.4 (3.48.4-1.fc38) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240422_095446_088538_1B2ADFF4 X-CRM114-Status: GOOD ( 14.72 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH 5/5] ARM: dts: i.MX8MP: Add optional nominal drive mode DTSI X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Am Freitag, dem 19.04.2024 um 08:13 +0200 schrieb Ahmad Fatoum: > Unlike the i.MX8MM and i.MX8MN SoCs added earlier, the device tree for > the i.MX8MP configures some clocks at frequencies that are only > validated for overdrive mode, i.e. when VDD_SOC is 950 mV. >=20 > Boards may want to run their SoC at the lower voltage of 850 mV though > to reduce heat generation and power usage. For this to work, clock rates > need to adhere to the limits of the nominal drive mode. >=20 > Add an optional DTSI file which can be included by various boards to run > in this mode. >=20 > Signed-off-by: Ahmad Fatoum > --- > arch/arm/dts/imx8mp-nominal.dtsi | 51 ++++++++++++++++++++++++++++++++ > 1 file changed, 51 insertions(+) > create mode 100644 arch/arm/dts/imx8mp-nominal.dtsi >=20 > diff --git a/arch/arm/dts/imx8mp-nominal.dtsi b/arch/arm/dts/imx8mp-nomin= al.dtsi > new file mode 100644 > index 000000000000..a9f46503f656 > --- /dev/null > +++ b/arch/arm/dts/imx8mp-nominal.dtsi > @@ -0,0 +1,51 @@ > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) > + > +&clk { > + assigned-clocks =3D <&clk IMX8MP_CLK_A53_SRC>, > + <&clk IMX8MP_CLK_A53_CORE>, > + <&clk IMX8MP_SYS_PLL3>, > + <&clk IMX8MP_CLK_NOC>, > + <&clk IMX8MP_CLK_NOC_IO>, > + <&clk IMX8MP_CLK_GIC>; > + assigned-clock-parents =3D <&clk IMX8MP_SYS_PLL1_800M>, > + <&clk IMX8MP_ARM_PLL_OUT>, > + <0>, > + <&clk IMX8MP_SYS_PLL1_800M>, > + <&clk IMX8MP_SYS_PLL3_OUT>, > + <&clk IMX8MP_SYS_PLL1_800M>; > + assigned-clock-rates =3D <0>, <0>, > + <600000000>, > + <800000000>, > + <600000000>, > + <400000000>; > +}; > + > +&pgc_hsiomix { > + assigned-clocks =3D <&clk IMX8MP_CLK_HSIO_AXI>; > + assigned-clock-parents =3D <&clk IMX8MP_SYS_PLL1_800M>; > + assigned-clock-rates =3D <400000000>; > +}; > + > +&pgc_gpumix { > + assigned-clocks =3D <&clk IMX8MP_GPU_PLL>, > + <&clk IMX8MP_CLK_GPU_AXI>, > + <&clk IMX8MP_CLK_GPU_AHB>; > + assigned-clock-parents =3D <0>, > + <&clk IMX8MP_GPU_PLL_OUT>, > + <&clk IMX8MP_GPU_PLL_OUT>; > + assigned-clock-rates =3D <600000000>, <600000000>, <300000000>; Use SYS_PLL3 as the parent clock, instead of GPU PLL. > +}; > + > +&media_blk_ctrl { > + assigned-clocks =3D <&clk IMX8MP_CLK_MEDIA_AXI>, > + <&clk IMX8MP_CLK_MEDIA_APB>, > + <&clk IMX8MP_CLK_MEDIA_DISP1_PIX>, > + <&clk IMX8MP_CLK_MEDIA_DISP2_PIX>, > + <&clk IMX8MP_VIDEO_PLL1>; > + assigned-clock-parents =3D <&clk IMX8MP_SYS_PLL1_800M>, > + <&clk IMX8MP_SYS_PLL1_800M>, > + <&clk IMX8MP_VIDEO_PLL1_OUT>, > + <&clk IMX8MP_VIDEO_PLL1_OUT>; > + assigned-clock-rates =3D <400000000>, <200000000>, > + <0>, <0>, <1039500000>; > +};